I need the fuse box and dash wiring harness for a 66 cutlass non a/c, I don’t know if it’s different or not. And all the switches for a 66, headlights, wiper and ignition bezel.

 

The A/C harness is a separate harness. The only difference in the dash harness is the wiper switch connector. The round motor & the square motor use different connectors but the wiring can be changed @ the connector by just switching the order.

 

Ok cool, my car has the round motor style wiper.